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How many molecules of pyruvic acid are produced when a single glucose molecule undergoes glycolysis?(1 point) Responses 2 2 4 4 1 1 0
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Order the atoms involved in cellular respiration from most prevalent to least.(1 point) Responses H, C, O H, C, O H, O, C H, O, C O, H, C O, H, C C, H, O
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The most prevalent atoms in cellular respiration, in order from most prevalent to least, are **H, C, O**. Therefore, the correct response is **H, C, O**.
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How many CO2 molecules are produced when three glucose molecules undergo cellular respiration?(1 point) Responses 18 18 12 12 3 3 6
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When one glucose molecule undergoes cellular respiration, it produces 6 molecules of carbon dioxide (CO2). Therefore, when three glucose molecules are metabolized, it would produce:
\[ 3 \text{ glucose} \times 6 \text{ CO2/glucose} = 18 \text{ CO2} \]
So, the correct response is **18**.
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Suppose cellular respiration occurs inside an insulated, sealed container. How does the container’s weight change during the reaction?(1 point) Responses decreases decreases increases increases fluctuates fluctuates stays the same
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During cellular respiration, glucose and oxygen are converted into carbon dioxide, water, and energy. Although gas (like CO2) is produced and might escape a regular open system, in a sealed, insulated container, all reactants and products remain inside the container. Thus, the total mass of the container and its contents remains unchanged.
Therefore, the correct response is **stays the same**.
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How would a 3D model of glucose differ from the formula model?(1 point) Responses A 3D model shows the number of each type of atom, but the formula model does not A 3D model shows the number of each type of atom, but the formula model does not A formula model shows which atoms are larger but the 3D model does not. A formula model shows which atoms are larger but the 3D model does not. A formula model shows size of the glucose molecule, but the 3D model does not. A formula model shows size of the glucose molecule, but the 3D model does not. A 3D model shows how the different atoms are arranged, but the formula model does not. A 3D model shows how the different atoms are arranged, but the formula model does not.
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The correct response is: **A 3D model shows how the different atoms are arranged, but the formula model does not.**
A molecular formula provides the types and quantities of atoms in a molecule (like C6H12O6 for glucose) but does not convey the spatial arrangement of those atoms. A 3D model, on the other hand, represents the actual structure and how the atoms are positioned in three-dimensional space.